Scalable Fabrication of Reversible Antifouling Block Copolymer Coatings via Adsorption Strategies

Anna M.C. Maan, Chantal N. Graafsma, Anton H. Hofman, Théophile Pelras, Wiebe M. de Vos*, Marleen Kamperman

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

4 Citations (Scopus)
26 Downloads (Pure)

Abstract

Fouling remains a widespread challenge as its nonspecific and uncontrollable character limits the performance of materials and devices in numerous applications. Although many promising antifouling coatings have been developed to reduce or even prevent this undesirable adhesion process, most of them suffer from serious limitations, specifically in scalability. Whereas scalability can be particularly problematic for covalently bound antifouling polymer coatings, replacement by physisorbed systems remains complicated as it often results in less effective, low-density films. In this work, we introduce a two-step adsorption strategy to fabricate high-density block copolymer-based antifouling coatings on hydrophobic surfaces, which exhibit superior properties compared to one-step adsorbed coatings. The obtained hybrid coating manages to effectively suppress the attachment of both lysozyme and bovine serum albumin, which can be explained by its dense and homogeneous surface structure as well as the desired polymer conformation. In addition, the intrinsic reversibility of the adhered complex coacervate core micelles allows for the successful triggered release and regeneration of the hybrid coating, resulting in full recovery of its antifouling properties. The simplicity and reversibility make this a unique and promising antifouling strategy for large-scale underwater applications.

Original languageEnglish
Pages (from-to)19682-19694
Number of pages13
JournalACS Applied Materials and Interfaces
Volume15
Issue number15
Early online date5 Apr 2023
DOIs
Publication statusPublished - 19 Apr 2023

Keywords

  • antifouling coating
  • complex coacervate core micelles
  • diblock copolymers
  • hydrophobic surfaces
  • polymer brush
  • two-step adsorption
  • UT-Hybrid-D

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